<template>
  <div class="app-container">
    <!-- 表格 -->
    <!--查询表单-->
    <div class="search-div">
      <el-form label-width="70px" size="small">
        <el-row>
          <el-col :span="24">
            <el-form-item label="角色名称">
              <el-input
                style="width: 100%"
                v-model="searchObj.roleName"
                placeholder="角色名称"
              ></el-input>
            </el-form-item>
          </el-col>
        </el-row>
        <el-row style="display: flex">
          <el-button
            type="primary"
            icon="el-icon-search"
            size="mini"
            @click="fetchData()"
            :disabled="$hasBP('bnt.sysRole.list') === false"
            >搜索</el-button
          >
          <el-button icon="el-icon-refresh" size="mini" @click="resetData"
            >重置</el-button
          >
        </el-row>
      </el-form>
    </div>
    <!-- 工具条 -->
    <div class="tools-div">
      <el-button type="success" icon="el-icon-plus" size="mini" @click="add"
      :disabled="$hasBP('bnt.sysRole.add') === false"
        >添 加</el-button
      >
      <el-button class="btn-add" size="mini" @click="batchRemove()"
      :disabled="$hasBP('bnt.sysRole.add') === false"
        >批量删除</el-button
      >
    </div>
    <el-table
      v-loading="listLoading"
      :data="list"
      stripe
      border
      style="width: 100%; margin-top: 10px"
      @selection-change="handleSelectionChange"
    >
      <el-table-column type="selection" />

      <el-table-column label="序号" width="70" align="center">
        <template slot-scope="scope">
          {{ (page - 1) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>

      <el-table-column prop="roleName" label="角色名称" />
      <el-table-column prop="roleCode" label="角色编码" />
      <el-table-column prop="createTime" label="创建时间" width="160" />
      <el-table-column label="操作" width="200" align="center">
        <template slot-scope="scope">
          <el-button
            type="primary"
            icon="el-icon-edit"
            size="mini"
            @click="edit(scope.row.id)"
            title="修改"
            :disabled="$hasBP('bnt.sysRole.update') === false"
          />
          <el-button
            type="danger"
            icon="el-icon-delete"
            size="mini"
            @click="removeDataById(scope.row.id)"
            title="删除"
            :disabled="$hasBP('bnt.sysRole.remove') === false"
          />
          <el-button
            type="warning"
            icon="el-icon-baseball"
            size="mini"
            @click="showAssignAuth(scope.row)"
            title="分配权限"
            :disabled="$hasBP('bnt.sysRole.assignAuth') === false"
          />
        </template>
      </el-table-column>
    </el-table>
    <!-- 分页组件 -->
    <el-pagination
      :current-page="page"
      :total="total"
      :page-size="limit"
      :page-sizes="[5, 10]"
      @size-change="handleCurrentChange"
      style="padding: 30px 0; text-align: center"
      layout="prev, pager, next, jumper,->,sizes,total"
      @current-change="fetchData"
    />
    <!-- 弹出层 -->
    <el-dialog title="添加/修改" :visible.sync="dialogVisible" width="40%">
      <el-form
        ref="dataForm"
        :model="sysRole"
        label-width="150px"
        size="small"
        style="padding-right: 40px"
      >
        <el-form-item label="角色名称">
          <el-input v-model="sysRole.roleName" />
        </el-form-item>
        <el-form-item label="角色编码">
          <el-input v-model="sysRole.roleCode" />
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button
          @click="dialogVisible = false"
          size="small"
          icon="el-icon-refresh-right"
          >取 消</el-button
        >
        <el-button
          type="primary"
          icon="el-icon-check"
          @click="saveOrUpdate()"
          size="small"
          >确 定</el-button
        >
      </span>
    </el-dialog>
  </div>
</template>
<script>
import api from "@/api/system/systemRole";
const defaultForm = {
  id: "",
  roleName: "",
  roleCode: "",
};
export default {
  // 定义数据模型
  data() {
    return {
      listLoading: true,
      list: [],
      total: 0,
      page: 1,
      limit: 5,
      searchObj: {},
      sysRole: defaultForm,
      dialogVisible: false,
      multipleSelection: [], // 批量删除选中的记录列表
    };
  },
  // 页面渲染之前获取数据
  created() {
    this.fetchData();
  },
  // 定义方法
  methods: {
    // 默认分页查询展示
    fetchData(pageNum = 1) {
      this.page = pageNum;
      // 调用api
      api
        .getPageList(this.page, this.limit, this.searchObj)
        .then((response) => {
          console.log(response);
          this.listLoading = false;
          this.list = response.data.records;
          this.total = response.data.total;
        });
    },
    // 修改页面展示个数
    handleCurrentChange(val) {
      console.log(`当前页: ${val}`);
      this.limit = val;
      this.fetchData();
    },
    // 重置角色名搜索
    resetData() {
      this.searchObj = {};
      this.fetchData();
    },
    // 根据id删除角色
    removeDataById(id) {
      this.$confirm("此操作将永久删除该记录, 是否继续?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      })
        .then(() => {
          // promise
          // 点击确定，远程调用ajax
          return api.removeById(id);
        })
        .then((response) => {
           this.fetchData(this.list.length > 1 ? this.page : this.page - 1)
          this.$message.success(response.message || "删除成功");
        });
    },
    add() {
      // 清空表单
      this.sysRole = {};
      // 显示弹出层
      this.dialogVisible = true;
    },
    edit(id) {
      this.dialogVisible = true;
      api.getRoleById(id).then((response) => {
        if (200 == response.code) {
          this.sysRole = response.data;
        } else {
          this.$message.error(response.message);
        }
      });
    },
    saveOrUpdate() {
      if (!this.sysRole.id) {
        this.save();
      } else {
        this.update();
      }
    },
    // 保存数据
    save() {
      api.save(this.sysRole).then((response) => {
        if (response.code == 200) {
          this.$message.success(response.message);
        } else {
          this.$message.error(response.message);
        }
        this.dialogVisible = false;
        this.fetchData(this.page);
      });
    },
    // 根据Id跟新数据
    update() {
      api.updateById(this.sysRole).then((response) => {
        if (200 == response.code) {
          this.$message.success(response.message);
        } else {
          this.$message.error(response.message);
        }
        this.dialogVisible = false;
        this.fetchData(this.page);
      });
    },
    showAssignAuth(row) {
      this.$router.push(
        "/system/assignAuth?id=" + row.id + "&roleName=" + row.roleName
      );
    }, 
    // 当多选选项发生变化的时候调用
    handleSelectionChange(selection) {
      console.log(selection);
      this.multipleSelection = selection;
    },
    // 批量删除
    batchRemove() {
      if (this.multipleSelection.length === 0) {
        this.$message.warning("请选择要删除的记录！");
        return;
      }
      this.$confirm("此操作将永久删除该记录, 是否继续?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      })
        .then(() => {
          // 点击确定，远程调用ajax
          // 遍历selection，将id取出放入id列表
          var idList = [];
          this.multipleSelection.forEach((item) => {
            idList.push(item.id);
          });
          // 调用api
          return api.batchRemove(idList);
        })
        .then((response) => {
          this.fetchData();
          this.$message.success(response.message);
        })
        .catch((error) => {
          if (error === "cancel") {
            this.$message.info("取消删除");
          }
        });
    },
  },
};
</script>
